Empower Your JDM Engine With GSC Power Division Components
Discover the GSC Power Division collection at HD Werks, offering genuine, high-performance components engineered for superior engine and powertrain upgrades. These original parts, designed for racing and aftermarket tuning, deliver custom solutions that optimize power output and dynamic control. Crafted with Japanese innovation, GSC products provide authentic quality and robust performance for both track and street use. Experience the perfect blend of original design and aggressive performance. Shop our GSC Power Division range for original components that transform your vehicleís dynamics.
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Vendor:GSC Power DivisionGSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Intake Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
-$1.50
Vendor:GSC Power DivisionGSC P-D Ford Mustang 4.6L SOHC 2-Valve Exhaust Valve Guide Stoper Style +.003in OD - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D Ford Mustang 4.6L SOHC 2-Valve Exhaust Valve Guide Stopper Style +.001in Oversize - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
-$11.91
Vendor:GSC Power DivisionGSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
-$1.50
Vendor:GSC Power DivisionGSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
-$1.50
Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.525in L x .3415in ID x .502in OD +.003in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.525in L x .3415in ID x .502in OD +.001in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
-$11.91
Vendor:GSC Power DivisionGSC P-D GM 2.525in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
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Vendor:GSC Power DivisionGSC P-D GM 2.525in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.225in L x .3415in ID x .502in OD +.003in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.225in L x .3415in ID x .502in OD +.001in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D GM 2.225in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
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Vendor:GSC Power DivisionGSC P-D GM 2.225in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.1in L x .3415in ID x .502in OD (+.003in) - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.1in L x .3415in ID x .502in OD (+.001in) - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
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Vendor:GSC Power DivisionGSC P-D GM 2.1in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
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Vendor:GSC Power DivisionGSC P-D GM 2.1in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
-$1.01
Vendor:GSC Power DivisionGSC P-D 2008+ Dodge Viper Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
-$1.01
Vendor:GSC Power DivisionGSC P-D 2008+ Dodge Viper Manganese Bronze Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
-$17.21
Vendor:GSC Power DivisionGSC P-D Dodge Viper 2015+ Manganese Bronze Exhaust Valve Guide - SET OF 10
Regular price $97.99Regular price$115.20-$17.21 Sale price $97.99 -
-$1.01
Vendor:GSC Power DivisionGSC P-D 2015+ Dodge Viper Manganese Bronze Exhaust Valve Guide - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
-$1.01
Vendor:GSC Power DivisionGSC P-D 2008+ Dodge Viper Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
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Vendor:GSC Power DivisionGSC P-D 2008+ Dodge Viper Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
-$17.21
Vendor:GSC Power DivisionGSC P-D Dodge Viper 2015+ Manganese Bronze Intake Valve Guide - SET OF 10
Regular price $97.99Regular price$115.20-$17.21 Sale price $97.99 -
-$1.01
Vendor:GSC Power DivisionGSC P-D Dodge Viper 2015+ Manganese Bronze Intake Valve Guide - Single
Regular price $10.99Regular price$12.00-$1.01 Sale price $10.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Subaru EJ20/EJ25 SOHC Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Subaru EJ20/Subaru EJ25 SOHC Intake/Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$7.70
Vendor:GSC Power DivisionGSC P-D Subaru EJ20/EJ25 SOHC Manganese Bronze Intake/Exhaust Valve Guide - Set of 8
Regular price $43.99Regular price$51.69-$7.70 Sale price $43.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 2012+ Subaru BRZ FA20 Manganese Bronze Intake Valve Guide Stopper Style +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 2012+ Subaru BRZ FA20 Manganese Bronze Intake Valve Guide Stopper Style +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Subaru/Scion BRZ/FR-S FA20 Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 2012+ Subaru BRZ FA20 Manganese Bronze Exhaust Valve Guide Stopper Style +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 2012+ Subaru BRZ FA20 Manganese Bronze Exhaust Valve Guide Stopper Style +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Subaru/Scion BRZ/FR-S FA20 Manganese Bronze Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Dodge Neon SRT4/420A Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99
